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Sony VGN-NR123E Power Adapter
Due to the fact that one Sony adapter is probably used on other similar units, be certain to thoroughly note the part number that is needed for this model. If buying off-brand, it is imperative to note both the voltage and amperage output. The Sony VGN-NR123E power adapter is responsible for two things, to charge the onboard battery and to provide a source of power for the unit. When purchasing a replacement AC charger, the actual Sony brand is the best one to choose. A universal AC adapter can be used if you absolutely need to.
Major warnings of a worsening laptop charger
- The laptop does not function while just using AC power
- Most Sony adapters can get quite warm when plugged in for any length of time
- Battery does not charge completely
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